package com.mftimer;

import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.os.Build;
import android.util.DisplayMetrics;

import java.util.Locale;

/**
 * Created by ThinkPad on 2018/11/18.
 */


public class LanguageUtils {

    public static Context attachBaseContext(Context context, String language) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            return createConfigurationResources(context, language);
        } else {
            applyLanguage(context, language);
            return context;
        }
    }

    /**
     * 7.1.1以下设置语言的方式
     *
     * @param context
     * @param newLanguage
     */
    public static void applyLanguage(Context context, String newLanguage) {
        Resources resources = context.getResources();
        Configuration configuration = resources.getConfiguration();

//        Locale locale = SupportLanguageUtil.getSupportLanguage(newLanguage);
//        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
//            // apply locale
//            configuration.setLocale(locale);
//        } else {
        // updateConfiguration

        switch (newLanguage) {
            case "en_US":
                configuration.locale = Locale.ENGLISH;
                break;

            case "zh_CN":
                configuration.locale = Locale.SIMPLIFIED_CHINESE;
                break;

            case "zh_TW":
                configuration.locale = Locale.TRADITIONAL_CHINESE;
                break;

            default:
                configuration.locale = Locale.ENGLISH;
                break;
        }

        DisplayMetrics dm = resources.getDisplayMetrics();
        resources.updateConfiguration(configuration, dm);
//        }
    }

    /**
     * 7.1.1以上设置语言的方式
     *
     * @param context
     * @param language
     * @return
     */
    @TargetApi(Build.VERSION_CODES.N)
    private static Context createConfigurationResources(Context context, String language) {
        Resources resources = context.getResources();
        Configuration configuration = resources.getConfiguration();

//        Locale locale;
//        if (TextUtils.isEmpty(language)) {
//            //如果没有指定语言使用系统首选语言
//            locale = SupportLanguageUtil.getSystemPreferredLanguage();
//        } else {
//            //指定了语言使用指定语言，没有则使用首选语言
//            locale = SupportLanguageUtil.getSupportLanguage(language);
//        }

        switch (language) {
            case "en_US":
                configuration.setLocale(Locale.ENGLISH);
                break;

            case "zh_CN":
                configuration.setLocale(Locale.SIMPLIFIED_CHINESE);
                break;

            case "zh_TW":
                configuration.setLocale(Locale.TRADITIONAL_CHINESE);
                break;

            default:
                configuration.setLocale(Locale.ENGLISH);
                break;
        }

        return context.createConfigurationContext(configuration);
    }
}
